Sig P320 Review: Specifications, Performance, and Price

 

The SIG Sauer P320 Full-Size is a semi-automatic, striker-fired 9mm handgun known for its modularity and performance. The SIG P320 Full-Size has a barrel length of 4.7 inches and an overall length of 8 inches. The SIG Sauer P320 Full-Size features a stainless steel frame and a Nitron-finished slide, weighing 29.5 ounces unloaded. The P320 Full-Size offers a magazine capacity of 17+1 rounds.

The SIG P320 Full-Size excels in accuracy, precision, and recoil management, making it a preferred choice for law enforcement, military, and civilian use. The P320 Full-Size's ergonomic design ensures ease of use and handling, providing consistent shot placement and control. The SIG Sauer P320 Full-Size costs $500 - $700, depending on the model and features.

Read our comprehensive SIG P320 review, discussing SIG P320 specifications, performance, and key features. Learn why SIG P320 is one of the most popular models that SIG Sauer has ever produced.

 

Sig Sauer P320 Full-Size Specs	Sig Sauer P320 Full-Size Spec Value
Caliber	9mm, .40 S&W, .357 SIG, .45 ACP
Barrel Length	4.7 inches
Overall Length	8 inches
Weight	29.5 ounces (unloaded)
Magazine Capacity	17+1 (9mm), 14+1 (.40 S&W, .357 SIG), 10+1 (.45 ACP)
Action Type	Striker-fired
Frame Material	Stainless Steel
Slide Material	Stainless Steel with Nitron finish
SIGhts	Contrast or SIGLITE night sights
Trigger Pull Weight	6.5 pounds
Safety Features	Striker safety, disconnect safety, 3-point takedown safety system
Grip Type	Interchangeable polymer grips
Rail System	M1913 accessory rail
Recoil Management	Effective recoil management due to ergonomic design
Finish	Nitron finish
SIGht Radius	6.6 inches
Trigger Type	Striker-fired
Warranty	Limited lifetime warranty
Country of Manufacture	USA
Cost	$500 - $700
Grip Width	1.3 inches
Trigger Reset Distance	Short, tactile reset
Slide Serrations	Front and rear serrations
Accessory Compatibility	Compatible with various accessories
Magazine Release	Reversible magazine release

 

What are the Key Specifications of a SIG P320 Full-Size Pistol?

 

The SIG P320 Full Size is a semi-automatic, striker-fired pistol. The key specifications of the SIG P320 Full Size include a caliber of 9mm, .40 S&W, .357 SIG, and .45 ACP. The SIG P320 Full-Size has a barrel length of 4.7 inches and an overall length of 8 inches. The weight of the SIG P320 Full-Size is 29.5 ounces (unloaded). The magazine capacity of the SIG P320 Full Size is 17+1 rounds.

The SIG P320 Full-Size features a stainless steel frame and a Nitron-finished slide, ensuring durability and corrosion resistance. The SIG Sauer P320 Full-Size is equipped with a M1913 accessory rail for mounting tactical lights or lasers. The SIG P320 Full Size has a trigger pull weight of 6.5 pounds. Safety features of the SIG P320 Full Size include a striker safety, disconnect safety, and a 3-point takedown safety system. The ergonomic grip and excellent recoil management enhance the SIG P320 Full Size's usability.

The SIG P320 Full-Size is one of the various types of SIG Sauer firearms, suitable for law enforcement, military, and civilian use. These features make the SIG P320 Full Size a popular choice among professionals who require a reliable and versatile sidearm.

 

 

What Caliber does a SIG Sauer P320 Full-Size use?

 

The SIG Sauer P320 Full-Size is available in multiple calibers, including 9mm, .40 S&W, .357 SIG, and .45 ACP. This versatility allows users to choose the caliber that best suits their needs, whether for self-defense, law enforcement, or recreational shooting.

The 9mm SIG P320 version features a magazine capacity of 17+1 rounds, the .40 S&W and .357 SIG versions hold 14+1 rounds, and the .45 ACP version holds 10+1 rounds. The availability of different calibers and magazine capacities makes the SIG Sauer P320 a flexible and reliable choice for various applications.

 

Is the SIG P320 Full Size?

 

Yes, the SIG P320 is available in a full-size variant. The full-size model features a 4.7-inch barrel and an overall length of 8 inches, making it suitable for duty use and providing a longer sight radius for improved accuracy. The P320's full-size frame offers a comfortable grip and higher magazine capacity, with the 9mm version holding 17+1 rounds. The size and design of the SIG P320 Full-Size make it an excellent choice for law enforcement, military, and civilian users who prioritize performance and reliability.

 

Does the SIG P320 Full-Size Offer Safety Measures?

 

Yes, the SIG P320 Full-Size offers several safety measures. The SIG Sauer P320 Full-Size features a striker safety, a disconnect safety, and a three-point takedown safety system that ensures the firearm cannot be disassembled without removing the magazine and locking the slide to the rear. Unlike many other pistols, the P320 Full-Size does not have a manual external safety, prioritizing quick readiness and ease of use.

When compared to other notable brands with the same caliber, such as the Glock 17, which uses a trigger safety and a firing pin safety, the SIG P320's integrated safety mechanisms provide a comparable level of security while maintaining simplicity. Similarly, the Smith & Wesson M&P9 includes a trigger safety and a sear deactivation lever for safe disassembly. The SIG P320 Full-Size’s design emphasizes a combination of effective safety measures and operational efficiency, making it a reliable choice for both civilian and professional users.

 

What is the SIG P320 controversy?

 

The SIG P320 Full-Size controversy revolves around concerns that the pistol could discharge when dropped at certain angles. This issue gained widespread attention in 2017 when videos and reports surfaced showing the P320 Full-Size discharging upon impact with the ground. The controversy raised significant safety concerns among users.

In response, SIG Sauer conducted a voluntary upgrade program, offering to retrofit existing P320s with enhanced safety features to prevent unintentional discharges. These enhancements included a lighter trigger, sear, and striker safety to improve drop safety. The action taken by SIG Sauer demonstrated their commitment to addressing safety concerns and maintaining user trust in the P320 model.

 

How does the SIG P320 Full-Size Perform?

 

The SIG P320 Full-Size performs exceptionally well in terms of accuracy, precision, recoil management, and ease of use. The P320 is renowned for its consistent accuracy, delivering tight groupings facilitated by its 4.7-inch barrel and clear sight picture.

SIG P320 recoil management is effective due to its ergonomic grip and balanced design, allowing for controlled rapid fire. Ease of use is a key feature, highlighted by its smooth, consistent trigger pull and intuitive, ambidextrous controls. This combination of accuracy, effective recoil management, and user-friendly features makes the P320 Full-Size a preferred choice for law enforcement, military, and civilian users.

 

What are the Recommended Uses for SIG P320 Full-Size?

 

The recommended uses for the SIG P320 Full-Size include law enforcement, home defense, and competitive shooting. The P320’s reliability, accuracy, and modularity make it a preferred choice for law enforcement officers who require a dependable sidearm.

The P320 Full-Size’s 9mm caliber offers sufficient stopping power and manageable recoil, making it suitable for home defense scenarios. The P320’s precision and ease of handling make it an excellent option for competitive shooting, allowing users to achieve consistent performance in various shooting disciplines. The P320 Full-Size’s versatility across these applications highlights its robust and adaptable design.

 

What are the Advantages of a SIG Sauer P320 Full-Size?

 

The main advantage of the SIG Sauer P320 Full-Size is its modularity and customizable features, making it a top choice for both professional and civilian use. Further advantages of the SIG P320 Full Size are listed below.

• SIG P320 Full-Size Modularity: The SIG P320 Full Size's design allows users to easily change calibers, frame sizes, and grip modules, providing unmatched versatility.
• SIG P320 Full-Size Reliability: The SIG P320 Full Size is renowned for its dependable performance, with minimal malfunctions even under extreme conditions.
• SIG P320 Full-Size Accuracy: With a 4.7-inch barrel and precise sight system, the SIG Sauer P320 Full Size ensures accurate shot placement during extended shooting sessions.
• SIG P320 Full-Size Safety Features: The SIG P320 Full Size is equipped with a striker safety, disconnect safety, and a 3-point takedown safety system, enhancing security without compromising ease of use.
• SIG P320 Full-Size Ergonomic Design: The ergonomic grip and intuitive controls provide comfort and ease of handling, suitable for long-term use.

These characteristics make the SIG Sauer P320 Full-Size a versatile and reliable firearm, highly valued among the various types of SIG Sauer models by professionals and enthusiasts alike.

 

What are the Disadvantages of a SIG Sauer P320 Full-Size?

 

The main disadvantage of the SIG Sauer P320 Full-Size is its size, which can be a concern for some users. The full list of SIG P320 Full-Size disadvantages is available below.

• SIG P320 Full-Size Weight: The SIG P320 Full-Size is relatively heavy at 29.5 ounces unloaded, which may cause fatigue during prolonged use and can be less suitable for concealed carry compared to lighter pistols.
• SIG P320 Full-Size Cost: The SIG P320 Full-Size is more expensive than many other handguns in its class, which can be a barrier for budget-conscious buyers.
• SIG P320 Full-Size Size: The full-sized frame of the SIG P320 may be less suitable for users with smaller hands or those seeking a more compact firearm for everyday carry.

Despite these drawbacks, the SIG P320 Full-Size's modularity, reliability, and performance often outweigh these disadvantages for many users.

 

How Reliable are SIG P320 Full-Size Handguns in Various Conditions?

 

SIG P320 Full-Size handguns are highly reliable in various conditions. SIG P320 Full-Size handguns are engineered to perform consistently in extreme environments such as heat, cold, rain, and dust. The P320's robust construction, including its stainless steel frame and Nitron-finished slide, ensures durability and resistance to corrosion.

Extensive testing in military and law enforcement scenarios has demonstrated the P320’s ability to maintain accuracy and functionality under rigorous use. This exceptional reliability makes the SIG P320 Full-Size a trusted choice for professionals who require dependable performance in any situation.

 

What are the Ergonomic Considerations when Handling SIG P320 Full-Size Pistol?

 

 

The ergonomic considerations when handling the SIG P320 Full-Size pistol include its customizable grip, intuitive controls, and well-balanced design. The P320 features interchangeable grip modules that can accommodate various hand sizes, enhancing comfort and control.

The controls, such as the slide release and magazine release, are ambidextrous and strategically placed for easy access, allowing for seamless operation without adjusting hand position. The pistol's weight distribution is well-balanced, contributing to stability and ease of aiming. These ergonomic features improve handling, accuracy, and overall user experience, making the P320 Full-Size suitable for both novice and experienced shooters.

 

What are the Common Characteristics of SIG Sauer P320 Full-Size Pistols?

 

Common characteristics of SIG Sauer P320 Full-Size pistols include modularity, high accuracy, reliable performance, and ergonomic design.

• Modularity: The SIG P320 Full-Size is designed with a modular system, allowing users to easily change calibers, grip sizes, and slide configurations.
• High Accuracy: The SIG P320 Full-Size is known for its precise shot placement, supported by a 4.7-inch barrel and a high-quality sight system.
• Reliable Performance: The SIG P320 Full-Size performs consistently in various conditions, making it a trusted choice for law enforcement, military, and civilian use.
• Ergonomic Design: The SIG P320 Full-Size features an ergonomic grip and intuitive controls, enhancing comfort and handling for extended use.

These characteristics make the SIG P320 Full Size a versatile and dependable firearm, suitable for a wide range of applications.

 

How can You Modify a SIG Sauer P320 Full-Size?

 

You can modify a SIG Sauer P320 Full-Size through various aftermarket upgrades and accessories. Common modifications include changing grip modules to better fit your hand size, adding night sights or red dot optics for improved targeting, and upgrading the trigger for a lighter, smoother pull to increase accuracy.

Users of SIG P320 often install rail-mounted SIG Sauer P320 accessories such as tactical lights or lasers to enhance functionality in low-light conditions. The modular design of the P320 allows for easy customization, enabling users to tailor the pistol to their specific needs and preferences while maintaining its reliability and effectiveness.

 

What Accessories are Available for a SIG Sauer P320 Full-Size?

 

Accessories available for a SIG Sauer P320 Full-Size include night sights, red dot optics, custom grips, tactical lights, lasers, extended magazines, and holsters.

• SIG P320 Full-Size Night Sights and Red Dot Optics: Enhance targeting capabilities in various lighting conditions, improving accuracy and quick target acquisition.
• SIG P320 Full-Size Custom Grips: Improve comfort and control, allowing users to tailor the pistol to individual hand sizes and preferences.
• SIG P320 Full Size Tactical Lights and Lasers: Provide increased functionality in low-light situations, aiding in precise targeting.
• SIG P320 Full-Size Extended Magazines: Offer greater ammunition capacity for extended use, reducing the need for frequent reloads.
• SIG P320 Full Size Holsters: Holsters specifically designed for the SIG P320 Full Size offer secure and convenient carry options for different needs and preferences.

These accessories enhance the versatility and usability of the SIG P320 Full-Size for a wide range of applications.

 

What are the Best Holsters for SIG P320 Full-Size?

 

 

The best SIG P320 Full-Size holsters combine comfort, durability, and quick accessibility. One top option is the Sig Sauer P320 IWB Concealed Holster, which offers excellent retention and comfort for concealed carry. For those who prefer open carry, the Sig Sauer P320 Cross Draw Holster provides secure retention and easy access. If you use tactical lights or lasers, the Sig Sauer P320 Belt Tunnel Holster (Light/Laser) with its high retention and glove-like fit build is an ideal choice. These holsters are crafted to securely hold the P320 Full-Size while ensuring it is readily accessible when needed.

 

How to Buy a SIG P320 Full-Size Gun?

 

To buy a SIG P320 Full-Size gun, visit a licensed firearms dealer or an authorized SIG Sauer retailer. Ensure you meet the legal requirements for firearm ownership in your jurisdiction, which typically include background checks and proper identification.

You can purchase the SIG Sauer P320 from a local gun store, browse online at authorized retailers, or attend a gun show where licensed dealers are present. For online purchases, the firearm must be shipped to a local Federal Firearms License (FFL) holder, who will conduct the necessary background check before transfer. It's important to compare prices, verify authenticity, and check warranty and return policies before completing your purchase.

 

How much does a SIG Sauer P320 Full-Size Cost?

 

The SIG Sauer P320 Full-Size costs $500 to $700. The average cost can vary based on several factors, including the specific model variant, features, and finishes. Custom features such as night sights, optic-ready slides, or special finishes can increase the price. The inclusion of extra magazines, holsters, or other accessories can also affect the overall cost. Market demand, retailer pricing strategies, and regional differences can influence the final price. It is advisable to compare prices from various retailers and consider included accessories or warranties when assessing the overall value of the purchase.

 

What are the Factors that Influence the Price of a SIG P320 Full-Size?

 

The factors that influence the price of a SIG P320 Full-Size are listed below.

• Model Variants: Different calibers or special editions of the SIG P320 Full-Size can significantly impact the price. Limited or unique models tend to be more expensive.
• Custom Features: Add-ons like night sights, red dot optics, or extended magazines increase the overall cost of the SIG P320 Full Size.
• Finishes: The type of finish on the SIG P320 Full-Size, whether it is a standard finish or a premium one, affects the pricing. Premium finishes often cost more.
• Market Demand: High demand for the SIG P320 Full Size can drive prices up, especially during times of increased interest in firearms.
• Retailer Pricing Strategies: Different retailers may have varying pricing strategies, promotions, or discounts that can affect the cost of the SIG P320 Full-Size.
• Included Accessories or Warranties: Packages that include additional accessories or extended warranties can add to the price of the SIG P320 Full Size, offering more value but at a higher cost.

Understanding these factors helps in assessing the value and making an informed purchase decision for a SIG Sauer P320 Full-Size.

 

What are the Things to Consider before Buying a SIG P320 Full-Size?

 

Before buying a SIG P320 Full-Size, consider the cost, intended use, and compatibility with your needs.

• Cost: Ensure the cost of the SIG P320 Full Size fits within your budget. Prices typically range from $500 to $700, depending on the model and features.
• Intended Use: Determine if the SIG Sauer P320 Full-Size meets your requirements for personal defense, law enforcement, or recreational shooting. Its modularity and performance make it versatile for various applications.
• Size and Weight: Consider the SIG P320 Full Size’s size and weight for comfort and usability. Weighing 29.5 ounces unloaded, its full-sized frame might affect ease of carry and handling.
• Magazine Capacity: Evaluate if the 17+1 round capacity fits your needs, especially if you require higher capacity for specific uses.
• Ergonomics: Ensure the SIG P320 Full-Size’s grip and control layout are comfortable and suitable for your hand size and shooting style. The interchangeable grip modules can help tailor the fit to your preferences.

Understanding these factors will help you make an informed decision and ensure the SIG P320 Full Size is the right choice for you.

 

How does SIG P320 Full-Size differ from SIG P320 Compact?

 

 

The SIG P320 Full-Size and SIG P320 Compact differ primarily in size, weight, and magazine capacity. The Full-Size model features a 4.7-inch barrel and an overall length of 8 inches, making it larger and better suited for duty use and home defense.

The SIG P320 Full-Size has a magazine capacity of 17+1 rounds in 9mm. The Compact model has a 3.9-inch barrel and an overall length of 7.2 inches, offering better concealability and portability, with a magazine capacity of 15+1 rounds in 9mm. The Full-Size is heavier due to its larger size, making it ideal for users needing a larger firearm with higher capacity, while the Compact is perfect for those prioritizing concealability and ease of carry.

 

Why was the SIG P320 discontinued?

 

The SIG P320 has not been discontinued. The SIG P320 remains a popular and actively produced model by SIG Sauer. Any rumors or misconceptions about its discontinuation might stem from specific variants or limited editions no longer being produced. The P320 continues to be widely available and supported, with SIG Sauer frequently updating and expanding the line to include new features and configurations based on user feedback and technological advancements.

 

Is the SIG P320 reliable?

 

Yes, the SIG P320 is highly reliable. While some early users reported minor  SIG P320 problems related mainly to drop safety, SIG Sauer addressed these concerns with a voluntary upgrade program. The P320 has since undergone extensive testing and is trusted by various military and law enforcement agencies worldwide, which attests to its dependability.

The P320's design ensures consistent performance in diverse conditions, including extreme temperatures and adverse environments. The P320 Full-Size's robust construction, featuring a stainless steel frame and Nitron-finished slide, contributes to its durability and long-term reliability. The P320's modularity allows for easy maintenance and customization, further enhancing its performance and reliability.